Answer:
Computers affect our lives daily because we use them everyday to browse the internet and solve problems in real life. They help solve problems and without them, getting certain information would be much harder. They help us interact with friends from anywhere in the world and communicate with relatives. It has also helped us during this pandemic and lets us learn from school in the safety of our own home.
( hope this helps, i wrote it myself ;-; )
Answer:
Blocking Mode
Explanation:
Spanning Tree Protocol is used to allow path redundancy in the network without creating cycles/circles also called loops.
When two parts of the switched network are connected via two or more Layer 2 switches this result in a loop.
This affects the performance of the network as the result of broadcast packets flooding.
STP puts one port of the switch to forwarding mode and the rest of the ports within the same part of the network to the blocking mode to avoid broadcast packet flooding. STP puts all the ports that are allowing redundant paths to blocking mode and the one port that is left after this is placed in forward mode.
Spanning Tree Algorithm is used by STP to determine the optimal path of switch to the network.
Bridge Protocol Data Units are used to share the information about the optimal path determined by the spanning tree algorithm with other switches.
This information helps STP to eliminate the redundant paths.
So this is how STP allows only one active path to the destination while blocking all other paths to avoid switching loop.
Answer:
Customer Table
- Customer name
- Customer id
Product Table
- Product id/number (primary key, auto increment)
- Product name
- Product sale price
Transactions Table
- Transaction Id
- Customer Id
- Product id
- Quantity
- Price
- Date
Explanation:
Natalie wants to fetch following information from database
- Look up customer name and sale price
- Sort items in db by product number
To lookup customer name and sale price perform a join on Transactions table and Customer table.Assuming database is build in mysql the query to fetch required results would be
select transction.productId,transaction.customerid,customer.customername from transactions join customer ON
customer.customerid=transcation.customerid
where productid="user provided product id of returned product"
For sorting products by number set produc number in product table a auto increment primary key
Treasury bond − Diversified mutual fund - Stocks.
An investment is an asset or item that is purchased with the hope that it will generate income or will appreciate in value. All investments involve some degree of risk. In finance, risk refers to the degree of uncertainty or potential financial loss that could happen in an investment decision.
In general, as investment risks rise, investors seek higher returns to compensate themselves for taking such risks. Relying on personal resources has more risk than relying on public resources of producers.
Usually, a portfolio made up of 60% stocks, 30% mutual funds, and 10% Treasury bonds would be considered to be the highest risk portfolio.
The sentence ends with the word 'devices'
